Patent US2698327A successfully refreshed from Google Patents.
US2698327A
Expired / Lapsed
US
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N-dialkylaminoalkyl-n-diarylalkylaroylamides
Assignee: GD Searle LLC
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Filing: 1952-02-28
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Granted: 1954-12-28
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Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 John W Cusic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:58
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/81; C07D213/82; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN AMIDE OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
6 words
AN AMIDE OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
GB368590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |